Window scaffold



Jul 10, 1951 s. M. MOATS WINDOW SCAFFOLD Fil ed Jan. 24, 1950 am Z 43.11M. w n s u Patented July 10, 1951 UNITED STATES" PATENT OFFICEWINDOW SCA FFOLD Scott M. Moats, Columbus, Ohio Application January 24,1950, Serial No. 140,255

This invention relates to scaffolds of the type adapted to be extendedthrough windows and supported-from the inside of the window, and in 1Claim. o1. 304-47) particular a platform having rolled edges with anupwardly extended flange on the outer-end and a downwardly extendedflange on the inner end and in which the platform which is provided witha back rail positioned above the outer end is suspended by rods from atube extended across the inner surface of a window frame.

This invention is an improvement over the window scaffold of myco-pending application filed July 2'7, 1948 with the serial Number40,805 in that the platform is provided with flanges on the ends thatprovide connecting means for the back rail and facilitate connecting theinner end of the brace below the platform to the side bars with offseteyes on the upper ends.

Various types of scaffolds have been provided for use from windows andthe like but it has been found difficult to provide a scafi'old that oneperson may install in a window in which a platform is rigidly supported.With this thought in mind this invention contemplates a plate providinga platform in which the edges are rolled over side bars and in which theends are reinforced by flanges with the flange at the outer endproviding attaching means for a back rail and in Which the inner end ofa supporting brace below the platform is connected to the side bars withstruts having offset upper ends and also in which .the offset upper endsare provided with eyes that provide attaching means for diagonal bracesthat support the back rail.

The object of this invention is, therefore, to provide an improvedwindow scaffold in which a comparatively light weight platform isreinforced and rigidly supported by bars and braces wherein the platformis suspended from the inner surface of a window frame and supported sothat it may be used by a workman with absolute safety.

Another object of the invention is to provide a window scaffold having areinforced platform in which the platform is adapted to be moved througha window and suspended from the inner surface of the window by theaverage layman.

A further object of the invention is to provide an improved windowscaffold having a reinforced and rigidly supported platform which is ofa simple and economical construction.

Other features and advantages of the invention will appear from thefollowing description taken in connection with the drawings wherein:

Figure 1 is a view illustrating the general construction and arrangementof the scaffold.

Figure 2 is a side elevational view of .the scaffold showing thescaffold suspended through a window with the window frame and wall shownin section.

Figure 3 is a vertical longitudinally extended section through thescaffold taken on line 3 .3 of Figure 1.

Figure 4 is a plan View of the scaffold.

Figure 5 is an end elevational view looking toward the inner end of thescaffold.

Referring now to the drawings wherein 'like reference characters denotecorresponding parts the improved window scaffold of this inventionincludes a platform I0, side bars I l and I2, a back rail I3 and asupporting brace having side bars I 4 and I5 connected, at their innerends by an arcuate bar [6 and having struts l1 and i8 extended upwardlyand spaced from the inner ends.

The platform in is provided with rolled edges l9 and 20 that are rolledaround the side bars H and I2, respectively, and theinner end isprovided with a downwardly extended flange 2| that provides reinforcingtherefor. The outer end of the platform is provided with an upwardlyextended flange 22, the upper edge of which is folded over providing aninner section 23 and openings 24 and 25 are provided through the flange22 and section 23, through which hooks 26 and 21 on the lower ends ofvertically disposed rods 28 and 29, respectively, are freely positioned.

The upper ends of the rods 28 and 29 are provided with eyes 3!] and 3!respectively through which eyes 32 and 33 on the upper ends of diagonalbraces 34 and 35 are positioned, and the ends of the material formingthe eyes 30 and 3| extends across forming the back rail l3.

The braces 34 and 35 are provided with outwardly extended 'ends 36 and31 that extend through eyes 38 and 39, respectively on offset sections40 and 4| of the struts l1 and I8. The ends 36 and 31 are temporarilyretained in the eyes 38 and 39 by pins 42 and 43.

The offset sections 4!! and M of the struts l1 and 18 are secured, bywelding to the side bars H and I2, the ends of which extend from theplatform l0 so that they may extend through a window or the like. Theouter ends of the side bars I l and I2 are bent downwardly to form theside bars I4 and is of the supporting brace and the struts l1 and I8extend upwardly from the upper surfaces of the side bars of the brace.

The extended ends 44 and 45 of the side bars II and I2, respectively arethreaded and the threaded ends extend through openings in a tube 46 thatextends across and is positioned 3 against the inner surface of a windowframe 41. The side bars are adjustably secured in position by nuts 48and, as illustrated in Figure 2, the inner ends of the support bracesbear against an outer panel 49 of the window frame.

With the parts arranged in this manner the window scaffold whichincludes a plate forming a platform as indicated by the numeral ID withsupporting rods and a back rail may be moved outwardly through a windowand with the inner ends of the side bars H and I2 held to the tube 46the scaffold may be positively supported from the inner surface of thewindow. The scaffold may be used with absolute safety and after use itmay be withdrawn through the window.

It will be understood that modifications may be made in the design andarrangement of the parts without departing from the spirit of thinvention.

What is claimed is:

A window scaffold comprising a platform having rolled edges with anupwardly extended flange on the outer end and a downwardly extendedflange on the inner end, side bars having threaded inner ends extendedthrough the rolled edges of the platform, a back rail having downwardlyextended rods at the ends positioned above the outer end of the platformand with hooks on the lower ends of the rods positioned in openings inthe flange on the outer end of the platform, a tube extended across theplatform and through which the threaded ends of the side bars extend,nuts on the said inner ends of the side bars, and a U-shaped supportingbrace positioned below the platform having side bars extended from theouter ends of the side bars extended through the rolled edges of theplatform and with the inner ends of the side bars of the brace connectedby an arcuate bar, and struts having eyes on offset upper endsconnecting the inner ends of the side bars of the brace to the side barsof the platform, and diagonally positioned braces extended from the eyesof the struts to the end of the back rail for supporting the back railfrom the inner end of the platform.

SCOTT M. MOATS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS 25 Number Name Date 353,768 Trafton Dec. 7, 1886478,177 Thomson July 5, 1892 1,006,337 Zahn Oct. 17, 1911 1,664,470Trigonis Apr. 3, 1928

